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The grey
side of the
ECL Card
Ex
tended ser
vic
e
Service parameter(s) 27
32g
27 Boiler protection
Circuit
Setting range
Factory setting
I
ON / OFF
OFF
Choose whether the circulation pump for the boiler circuit (P1)
should be stopped to prevent condensation in the boiler during
the heating-up period.
ON:
The pump is stopped until the desired min.
flow temperature (line 2) in the boiler is
reached.
OFF:
The pump is controlled according to normal
conditions.
The pump is ON when:
• the desired flow temperature is higher
than 20 °C or
• the outdoor temperature is lower
than 2 °C.
The heating-up period of the boiler must be as short as
possible. This will reduce condensation in the furnace.
To obtain the best conditions for the boiler, the circulation
pump for the boiler circuit can be stopped during the
heating-up period.
The pump will start when the actual flow temperature is
higher than the min. desired flow temperature limit
(T
flow.ref.min
) + half the boiler temperature difference (T
diff
).
The pump will stop again if the actual flow temperature is
lower than the min. desired flow temperature limit
(T
flow.ref.min
).
T
flow.ref.min
is set in line 2, section 22.
T
diff
is set in line 4, section 24.
Example:
T
flow.ref.min
= 45 °C and T
diff
= 8 K
The pump will start when the actual flow temperature is higher
than 45 + 0.5 x 8 = 49 °C.
The pump will stop when the flow temperature is lower than 45 °C.
Flow temp. °C
0.5 x T
diff
T
flow.ref.min
Time
Содержание ECL Comfort C25
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